Unnamed: 0 int64 0 2.34M | titles stringlengths 5 21.5M | abst stringlengths 1 21.5M |
|---|---|---|
2,000 | Randomized controlled trial of fixed rate versus rate responsive pacing after radiofrequency atrioventricular junction ablation: quality of life, ventricular refractoriness, and paced QT dispersion. | Ablation of the AV junction is a widely accepted treatment of drug-refractory atrial fibrillation. Long-term pacing of the right ventricular (RV) apex following AV junction ablation can result in adverse cardiac remodeling. However, anecdotal studies report that pacing too slowly following AV junction ablation was asso... |
2,001 | Hydrofluoric acid-induced burns and life-threatening systemic poisoning--favorable outcome after hemodialysis. | Skin contact with hydrofluoric acid (HF) may cause serious burns and life-threatening systemic poisoning. The use of hemodialysis in fluoride intoxication after severe dermal exposure to HF has been recommended but not reported.</AbstractText>A 46-year-old previously healthy man had 7% of his body surface exposed to 71... |
2,002 | Amiodarone: guidelines for use and monitoring. | Amiodarone is a potent antiarrhythmic agent that is used to treat ventricular arrhythmias and atrial fibrillation. The drug prevents the recurrence of life-threatening ventricular arrhythmias and produces a modest reduction of sudden deaths in high-risk patients. Amiodarone is more effective than sotalol or propafenone... |
2,003 | Feasibility and safety of transeophageal atrial pacing stress echocardiography in patients with known or suspected coronary artery disease. | To investigate the feasibility and safety of the transesophageal atrial pacing stress test combined with echocardiography (TAPSE) 1,727 TAPSE tests were performed on 1,641 patients consecutively referred to our echocardiographic laboratory for nonexercise stress testing (1,319 men; mean age 60 +/- 9 years; 34% of whom ... |
2,004 | Usefulness of statin drugs in protecting against atrial fibrillation in patients with coronary artery disease. | Atrial fibrillation (AF) is prevalent in the elderly, in patients with hypertension, and in patients with coronary artery disease (CAD). We hypothesized that statin therapy might be effective in preventing AF in patients with CAD and examined this hypothesis in a sample of patients with chronic stable CAD without AF, f... |
2,005 | Implantable cardioverter defibrillator events in patients with asymptomatic nonsustained ventricular tachycardia: is device implantation justified? | Primary prevention trials have demonstrated that patients with coronary disease, reduced left ventricular function, and nonsustained ventricular tachycardia (NSVT) have improved survival with implantable cardioverter defibrillator (ICD) therapy, presumably secondary to effective termination of life-threatening arrhythm... |
2,006 | Factors determining ICD implantation in drug therapy patients after termination of antiarrythmics versus implantable defibrillators trial. | Because of a significant survival benefit in the defibrillator arm of the Antiarrhythmics versus Implantable Defibrillator (AVID) Trial, patients in the antiarrhythmic drug (AAD) arm were advised to undergo ICD implantation. Despite this recommendation, ICD implantation in AAD patients was variable, with a large number... |
2,007 | Effects of L-carnitine and its derivatives on postischemic cardiac function, ventricular fibrillation and necrotic and apoptotic cardiomyocyte death in isolated rat hearts. | The study aimed to examine whether L-carnitine and its derivatives, acetyl-L-carnitine and propionyl-L-carnitine, were equally effective and able to improve postischemic cardiac function, reduce the incidence of reperfusion-induced ventricular fibrillation, infarct size, and apoptotic cell death in ischemic/reperfused ... |
2,008 | Combined cox maze procedure, septal myectomy, and mitral valve replacement for severe hypertrophic obstructive cardiomyopathy complicated by chronic atrial fibrillation. | Atrial fibrillation (AF) has been reported to be an important prognostic indicator for clinical deterioration particularly in patients with hypertrophic obstructive cardiomyopathy (HOCM). A 66-year-old female complained of severe exertional dyspnea and tachycardia, which were resistant to medical treatments. Doppler ec... |
2,009 | [Inpatient cardiac defibrillation: efficacy of bipolar sinusoidal impulse]. | Efficacy of external defibrillation of the heart with low energy (</=65-195 J) bipolar quasi sinusoidal discharges was studied in 76 patients with induced, primary (overall 70 episodes), and secondary (88 episodes) ventricular fibrillation (VF) and hemodynamically unstable ventricular tachycardia (VT) with or withou... |
2,010 | Acute coronary syndrome: potassium, magnesium and cardiac arrhythmia. | Cardiac arrhythmia is often present in patients with acute coronary syndrome (ACS) and may be due to the electrolyte imbalance.</AbstractText>To assess the prevalence and clinical significance of electrolyte imbalance in ACS.</AbstractText>Serum potassium and magnesium levels were measured within the first few hours in... |
2,011 | Prediction of atrial fibrillation in patients with severe mitral stenosis--role of atrial contribution to ventricular filling. | Atrial contribution to ventricular filling was studied to assess its role in predicting the future development of atrial fibrillation (AF) in patients with severe mitral stenosis (MS) and sinus rhythm.</AbstractText>Two hundred and eight patients with severe MS and sinus rhythm were followed up for 1 year. Baseline dat... |
2,012 | [Analysis of ventricular fibrillation signals for the evaluation of defibrillation success in the treatment of ventricular fibrillation]. | Precise detection of ventricular fibrillation (VF), reliable prediction of defibrillation success and adjustment of the discharge waveform to the patient's transthoracic impedance may contribute to a reduction of electricity-associated myocardial injury caused by unnecessary counter shocks. Specifically, asystole thres... |
2,013 | Female alcoholics: electrocardiographic changes and associated metabolic and electrolytic disorders. | To identify the electrocardiographic changes and their associations with metabolic and electrolytic changes in female alcoholics.</AbstractText>The study comprised 44 female alcoholics with no apparent physical disorder. They underwent the following examinations: conventional electrocardiography; serologic tests for sy... |
2,014 | Frequency-dependent effects of low-intensity ultrasound on activity of isolated heart. | The experiments with low-intensity ultrasound stimulation of isolated rat heart revealed frequency-dependent effects of ultrasound in a frequency range of 45-298 kHz on cardiac activity. |
2,015 | Does antegrade blood cardioplegia alone provide adequate myocardial protection in patients with left main stem disease? | The optimum route for cardioplegia administration in patients with severe coronary disease is still under debate. This study compared clinical, echocardiographic, and biochemical results in patients with left main stem disease treated with 2 different strategies of myocardial protection.</AbstractText>Between March 200... |
2,016 | Successful catheter ablation of electrical storm after myocardial infarction. | We report on 4 patients (aged 57 to 77 years; 3 men) who developed drug-refractory, repetitive ventricular tachyarrhythmias after acute myocardial infarction (MI). All episodes of ventricular arrhythmias were triggered by monomorphic ventricular premature beats (VPBs) with a right bundle-branch block morphology (RBBB).... |
2,017 | Plasma B-type natriuretic peptide levels in ambulatory patients with established chronic symptomatic systolic heart failure. | The diagnostic and prognostic values of plasma B-type natriuretic peptide (BNP) testing are established. However, the range of plasma BNP levels present in the setting of chronic, stable systolic heart failure (HF) is unclear.</AbstractText>We followed up 558 consecutive ambulatory patients with chronic, stable systoli... |
2,018 | Carvedilol alone or in combination with digoxin for the management of atrial fibrillation in patients with heart failure? | This study examined the relative merits of digoxin, carvedilol, and their combination for the management of patients with atrial fibrillation (AF) and heart failure (HF).</AbstractText>In patients with AF and HF, both digoxin and beta-blockers reduce the ventricular rate, and both may improve symptoms, but only beta-bl... |
2,019 | Ventricular fibrillation during anesthesia in association with J waves in the left precordial leads in a child with coarctation of the aorta. | A 14-year-old boy with coarctation of the aorta who showed repeat ventricular fibrillation during anesthesia, and ultimately sudden cardiac death in school, is presented. Electrocardiography showed J waves in the left precordial leads, which became prominent after an episode of ventricular fibrillation. While some of t... |
2,020 | Comparison of P-wave duration and dispersion in patients aged > or =65 years with those aged < or =45 years. | P-wave dispersion (PWD) is a new electrocardiographic marker that reflects discontinuous and inhomogeneous propagation of sinus impulses, which has been studied in some cardiac conditions as a useful predictor of paroxysmal atrial fibrillation (AF). The aim of the peresent study was to compare P-wave duration and PWD i... |
2,021 | Electrophysiologic effects of mental stress in healthy subjects: a comparison with epinephrine infusion. | Mental stress has been associated with serious cardiac arrhythmias, including ventricular tachycardia and ventricular fibrillation. The purpose of this study was to assess cardiac electrophysiologic effects of mental stress and compare them with those of epinephrine infusion. Ten healthy male volunteers participated. E... |
2,022 | Annual distribution of ventricular tachycardias and ventricular fibrillation. | Ischemic events and coronary deaths show seasonal variability with a peak during December and January. It remains unclear whether ventricular tachycardias (VT) and ventricular fibrillation (VF) follow a similar pattern. The purpose of this study was to investigate the annual distribution of malignant ventricular arrhyt... |
2,023 | Acute pulmonary edema after cardioversion of cardiac arrhythmias. | To examine the occurrence of acute pulmonary edema after cardioversion of arrhythmias.</AbstractText>Cases, case series, and related articles on the subject identified through a comprehensive literature search were examined.</AbstractText>Thirty cases (23 males) of post cardioversion acute pulmonary edema were identifi... |
2,024 | Electrophysiological effects accompanying regression of left ventricular hypertrophy. | The aim of this study was to investigate changes following regression of left ventricular hypertrophy (LVH).</AbstractText>Electrophysiolological changes were recorded in isolated guinea-pig myocardial preparations. LVH was induced by constriction of the thoracic aorta and regression was followed after removal of the c... |
2,025 | Compared to angiotensin II, epinephrine is associated with high myocardial blood flow following return of spontaneous circulation after cardiac arrest. | Epinephrine (adrenaline) and vasopressin are used currently to improve myocardial blood flow (MBF) during cardiac arrest. Angiotensin II has also been shown to improve MBF during CPR. We explored the effects of angiotensin II or epinephrine alone, and the combination of angiotensin with epinephrine, on myocardial and c... |
2,026 | Comparison of standard CPR versus diffuse and stacked hand position interposed abdominal compression-CPR in a swine model. | Interposed abdominal compression cardiopulmonary resuscitation (IAC-CPR) is an innovative basic life support technique requiring no mechanical adjuncts. Optimizing its performance remains a challenge. Hand-position technique over the abdomen during interposed abdominal compression (IAC) may be important. The purpose of... |
2,027 | Incidence and survival rate of bystander-witnessed out-of-hospital cardiac arrest with cardiac etiology in Osaka, Japan: a population-based study according to the Utstein style. | To clarify the incidence and survival rate of bystander-witnessed out-of-hospital cardiac arrests (OHCA) with cardiac etiology in Osaka Prefecture, Japan, with a population of nearly 9 million according to the Utstein style.</AbstractText>5047 consecutive OHCA cases were treated by ambulance personnel during the 12-mon... |
2,028 | A multiple logistic regression analysis of in-hospital factors related to survival at six months in patients resuscitated from out-of-hospital ventricular fibrillation. | The impact of the immediate in-hospital post-resuscitation care after out-hospital cardiac arrest is not well known. Based on treatment variables and laboratory findings a multiple logistic regression model was created for the prediction of survival at 6 months from the event.</AbstractText>A retrospective study of the... |
2,029 | The Quattro valve in rheumatic mitral valve disease: four-year follow up. | There remains a great need for bioprosthetic valves in developing countries where monitoring of anticoagulation therapy is difficult. The study aim was to assess the intermediate outcome following mitral valve replacement with a stentless bovine pericardial quadrileaflet mitral (Quattro) valve. This valve maintains mit... |
2,030 | [Brugada syndrome associated with ventricular fibrillation induced by administration of pilsicainide: a case report]. | A 56-year-old man with Brugada syndrome presented with ventricular fibrillation induced by administration of pilsicainide. He had syncope at age 46 years, and his uncle suddenly died of unknown cause. He had taken pilsicainide (150 mg/day) for paroxysmal atrial fibrillation, and suffered from syncope due to ventricular... |
2,031 | Catheter ablation of ventricular fibrillation in rabbit ventricles treated with beta-blockers. | A therapeutic implication of the focal-source hypothesis of ventricular fibrillation (VF) is that VF can be terminated by focal ablation. We hypothesize that beta-adrenergic receptor blockade converts multiple-wavelet VF to focal-source VF and that this focal source is located near the papillary muscle (PM).</AbstractT... |
2,032 | Use of automated external defibrillator by first responders in out of hospital cardiac arrest: prospective controlled trial. | To test the hypothesis that the use of an automated external defibrillator by police and fire fighters results in higher discharge rates for out of hospital cardiac arrest.</AbstractText>Controlled clinical trial with initial random allocation of automated external defibrillators to first responders in four of the eigh... |
2,033 | Impact of prophylactic i.v. magnesium on the efficacy of ibutilide for conversion of atrial fibrillation or flutter. | The impact of prophylactic i.v. magnesium on the efficacy of ibutilide for conversion of atrial fibrillation and flutter to normal sinus rhythm was studied. In this multicenter cohort study, all patients in three large, tertiary care centers who received ibutilide for acute chemical conversion of atrial fibrillation or... |
2,034 | CVT-510: a selective A1 adenosine receptor agonist. | Adenosine is an endogenous nucleoside that has potent antiarrhythmic effects on paroxysmal supraventricular tachycardia (PSVT) due to its negative dromotropic effects on the atrioventricular node. In addition to its electrophysiologic effects, adenosine has important effects on vascular smooth muscle cells, inflammator... |
2,035 | [Sudden cardiac death by commotio cordis]. | Commotio cordis due to blunt trauma to the precordium is a rare cause of death in young athletes, occurring less frequently than all of the other athletics-related deaths. Commotio cordis is a term used to describe cases of blunt thoracic impact causing fatality without structural damage of the heart and internal organ... |
2,036 | Acute contrast reaction management by radiologists: a local audit study. | Consultant radiologists and trainees must possess knowledge of optimal acute management of anaphylactic/anaphylactoid contrast reactions because patient survival depends upon prompt initial management. The aim of the present study is to assess the knowledge of first-line management of these reactions among radiologists... |
2,037 | Ion channel basis for alternans and memory in cardiac myocytes. | Beat-to-beat alternation in action potential morphology (alternans) in individual cardiac cells may be important in the development of ventricular tachycardia and fibrillation. So far, it has been difficult to identify the cause for alternans at the ion channel level because computer models and experiments that display... |
2,038 | [Atrial fibrillation: therapeutic strategies]. | Atrial fibrillation is the most common tachyarrhythmia encountered in clinical practice. Atrial fibrillation is associated with other cardiovascular diseases and advancing age. Patients with atrial fibrillation suffer significantly higher morbidity and morality rates, leading to more hospitalizations and higher health ... |
2,039 | Ventricular fibrillation and rhabdomyolysis after administration of succinylcholine. | Succinylcholine is a depolarising muscle relaxant. Because of its quick onset of action, it is particularly used in situations which require urgent intubation. However, there have been several reports of cardiac arrest after administration of succinylcholine. We describe the case of a young woman who developed ventricu... |
2,040 | Milrinone facilitates resuscitation from cardiac arrest and attenuates postresuscitation myocardial dysfunction. | Left ventricular (LV) dysfunction with a low cardiac index after successful CPR contributes to early death attributable to multiorgan failure, and an effective treatment has not been identified. The purpose of this study was to investigate the use of milrinone, a selective phosphodiesterase III inhibitor, as treatment ... |
2,041 | Implantable cardioverter-defibrillator therapy for prevention of sudden death in patients with arrhythmogenic right ventricular cardiomyopathy/dysplasia. | Arrhythmogenic right ventricular cardiomyopathy/dysplasia (ARVC/D) is a condition associated with the risk of sudden death (SD).</AbstractText>We conducted a multicenter study of the impact of the implantable cardioverter-defibrillator (ICD) for prevention of SD in 132 patients (93 males and 39 females, age 40+/-15 yea... |
2,042 | Impact of a preoperative mitral regurgitation scoring system on outcome of surgical repair for mitral valve prolapse. | The optimal timing of surgical correction of severe mitral regurgitation (MR) is important for improved morbidity and mortality. We utilized a scoring system to decide the timing of procedures. Based on clinical features and echocardiographic data, we hypothesized that preoperative semi-quantitation of MR using this sc... |
2,043 | Acute atrial fibrillation during dengue hemorrhagic fever. | Dengue fever is a viral infection transmitted by the mosquito, Aedes aegypti. Cardiac rhythm disorders, such as atrioventricular blocks and ventricular ectopic beats, appear during infection and are attributed to viral myocarditis. However, supraventricular arrhythmias have not been reported. We present a case of acute... |
2,044 | [Cardiac arrest in severe acute respiratory syndrome: analysis of 15 cases]. | To investigate the causes for cardiac arrest in severe acute respiratory syndrome (SARS) patients.</AbstractText>Retrospective analysis of the epidemiological history, clinical presentation, the change of laboratory tests, chest radiography, and treatment of 15 SARS patients with cardiac arrest.</AbstractText>The avera... |
2,045 | Arrhythmogenic right ventricular dysplasia in the elderly. | Arrhythmogenic right ventricular dysplasia (ARVD) is a form of cardiomyopathy characterized by fibrofatty infiltration of the right ventricle that leads to cardiac arrhythmias, usually sustained ventricular tachycardia or ventricular fibrillation. ARVD typically becomes recognized in young adults. The authors report a ... |
2,046 | Prognostic significance of ventricular arrhythmias post-myocardial infarction. | Despite improvements in management strategies, ventricular arrhythmias remain important markers of electrical instability and contribute to the identification of patients at increased risk of sudden cardiac death post-myocardial infarction (MI). Over the past 20 years, understanding of pathophysiological mechanisms and... |
2,047 | Serum neuron-specific enolase and S-100B protein in cardiac arrest patients treated with hypothermia. | High serum levels of neuron-specific enolase (NSE) and S-100B protein are known to be associated with ischemic brain injury and poor outcome after cardiac arrest. Therapeutic hypothermia has been shown to improve neurological outcome after cardiac arrest. The aim of this study was to evaluate the effect of therapeutic ... |
2,048 | Rate or rhythm control in persistent atrial fibrillation? | Atrial fibrillation (AF) is the most common sustained tachyarrhythmia encountered in clinical practice, with the majority of patients aged > 65 years. With an increasingly ageing population, the burden of AF in society continues to rise. One of the principal controversies in AF management is whether to control the v... |
2,049 | Long electrodes for radio frequency ablation: comparative study of surface versus intramural application. | There is increasing use of radio frequency (RF) ablation with long electrodes in the intraoperative treatment of atrial fibrillation. Nevertheless, the disparity in the lesion geometry in both depth and width is the major pitfall in the use of RF currents. The objective of this study was to differentiate the shape and ... |
2,050 | Ruthenium red-induced transition from ventricular fibrillation to tachycardia in isolated rat hearts: possible involvement of changes in mitochondrial calcium uptake. | Ventricular tachycardia (VT) is considered to be the most common precursor of ventricular fibrillation (VF) and sudden cardiac death. However, the mechanisms underlying the transition from VT to VF remain unclear despite more than a century of study. Here, we investigated whether perfusion of the heart with blockers of... |
2,051 | Prospective clinical and biological comparison of three blood cardioplegia techniques in low-risk CABG patients: better is worse than good enough. | Three myocardial protection techniques were evaluated in a prospective, randomised trial during coronary artery bypass grafts in 69 patients.</AbstractText>Twenty seven patients received intermittent hyperkalaemic undiluted warm blood anterograde cardioplegia (AC), 21 received continuous hyperkalaemic undiluted warm bl... |
2,052 | [Sudden death disclosing abnormal origin of the left coronary vessel from the pulmonary artery trunk]. | Anomalous origin of the left coronary artery from the pulmonary artery is a rare congenital abnormality with a poor prognosis in the newborn. Adult forms are, therefore, very rare, presenting with angina, cardiac failure or sudden death. The authors report the case of a 41 year old woman who was asymptomatic until admi... |
2,053 | [PCR-based site-directed mutagenesis and recombinant expression plasmid construction of a SCN5A mutation (K317N) identified in a Chinese family with Brugada syndrome]. | To perform PCR-based site-directed mutagenesis of a new SCN5A mutation (K317N) identified in a Chinese family with Brugada syndrome and construct the recombinant expression plasmid pRc/CMV-Hh1 containing the human cardiac sodium channel alpha subunit (hH1), mutant cDNA.</AbstractText>A pair of primers was designed acco... |
2,054 | Immediate defibrillation versus interventions first in a swine model of prolonged ventricular fibrillation. | we compared time-dependent rescue shock success when delivered immediately, to defibrillation preceded by 3 min of CPR, with and without high dose epinephrine (HDE) in a swine model of prolonged ventricular fibrillation (VF). Our hypotheses were that pretreatment with CPR and HDE would produce higher rates of successfu... |
2,055 | Brain metabolism during cardiopulmonary resuscitation assessed with microdialysis. | Microdialysis is an established tool to analyse tissue biochemistry, but the value of this technique to monitor cardiopulmonary resuscitation (CPR) effects on cerebral metabolism is unknown. The purpose of this study was to assess the effects of active-compression-decompression (ACD) CPR in combination with an inspirat... |
2,056 | Antithrombin reduction after experimental cardiopulmonary resuscitation. | To determine whether activation of coagulation and inflammation during cardiac arrest results in a reduction of antithrombin (AT) and an increase in thrombin-antithrombin (TAT) complex during reperfusion.</AbstractText>Ventricular fibrillation (VF) was induced in ten anaesthetized pigs. After a 5-min non-intervention i... |
2,057 | Defibrillation waveform and post-shock rhythm in out-of-hospital ventricular fibrillation cardiac arrest. | The importance of the defibrillation waveform on the evolving post-shock cardiac rhythm is uncertain. The primary objective of this study was to evaluate cardiac rhythms following the first defibrillation shock, comparing biphasic truncated exponential (BTE), monophasic damped sinusoidal (MDS), and monophasic truncated... |
2,058 | VF recurrence: characteristics and patient outcome in out-of-hospital cardiac arrest. | Refibrillation after successful defibrillation in out-of-hospital cardiac arrest is a frequent event. Little is known of factors that predispose to the occurrence of refibrillation. The effect of recurrence of ventricular fibrillation (VF) on survival is not known.</AbstractText>Data of patients in out-of-hospital card... |
2,059 | Difference in end-tidal CO2 between asphyxia cardiac arrest and ventricular fibrillation/pulseless ventricular tachycardia cardiac arrest in the prehospital setting. | There has been increased interest in the use of capnometry in recent years. During cardiopulmonary resuscitation (CPR), the partial pressure of end-tidal carbon dioxide (PetCO2) correlates with cardiac output and, consequently, it has a prognostic value in CPR. This study was undertaken to compare the initial PetCO2 an... |
2,060 | Evidence favoring the use of an alpha2-selective vasopressor agent for cardiopulmonary resuscitation. | Both alpha1- and beta-adrenergic agonists increase the severity of global myocardial ischemic injury. We hypothesized that combined beta- and alpha1-adrenergic blockade would improve initial resuscitation and postresuscitation myocardial and neurological functions. We further hypothesized that the resulting alpha2-acti... |
2,061 | Noninvasive arrhythmia risk stratification in idiopathic dilated cardiomyopathy: results of the Marburg Cardiomyopathy Study. | Arrhythmia risk stratification with regard to prophylactic implantable cardioverter-defibrillator therapy is a completely unsolved issue in idiopathic dilated cardiomyopathy (IDC).</AbstractText>Arrhythmia risk stratification was performed prospectively in 343 patients with IDC, including analysis of left ventricular (... |
2,062 | Determinants of sudden cardiac death in individuals with the electrocardiographic pattern of Brugada syndrome and no previous cardiac arrest. | Patients with Brugada syndrome who were resuscitated from an episode of ventricular fibrillation are at high risk for recurrent sudden death. There is general agreement about the therapeutic strategy for these patients. Conversely, the prognosis and approach in patients with a diagnostic ECG but without a previous hist... |
2,063 | [Recurrent ventricular fibrillation in a patient with Brugada syndrome successfully treated with procainamide]. | Brugada syndrome is a clinical and electrocardiographic entity characterized by ST segment elevation in the right precordial ECG leads and sudden death or syncope secondary to malignant ventricular arrhythmia, and has a high recurrence rate. We report a patient with this syndrome who had received an automatic implantab... |
2,064 | Sudden cardiac death with left main coronary artery occlusion in a patient whose presenting ECG suggested Brugada syndrome. | This article describes a patient who died suddenly during Holter ECG monitoring. A ventricular premature systole with an extremely short coupling interval of 240 ms was immediately followed by torsades de pointes, soon degenerating into ventricular fibrillation. Retrospective survey of the patient's medical records rev... |
2,065 | Significance of external cardioversion induced atrial tachyarrhythmias. | External cardioversion is used to stop VT or VF in emergency. Supraventricular tachyarrhythmias are sometimes noted after cardioversion in patients known to be previously in sinus rhythm. The purpose of the study was to evaluate the significance of supraventricular tachyarrhythmias induced by external cardioversion. Th... |
2,066 | Distinct clinical features in the recipients of the implantable cardioverter defibrillator in Taiwan: a multicenter registry study. | Little information about the ICD is available from the Asian Pacific region. The purpose of this study was to characterize the clinical features in ICD patients in Taiwan and to compare these features with those in patients in the Western populations, mainly the Canadian Implantable Defibrillator Study (CIDS), the Anti... |
2,067 | Acute type A aortic dissection complicated with acute inferior myocardial infarction following aortic valve replacement. | Acute aortic dissection complicated with acute myocardial infarction (AMI) is the most fatal situation. We experienced the successful treatment for acute type A aortic dissection complicated with inferior AMI following aortic valve replacement (AVR). A 60-year-old man had had AVR for aortic regurgitation. Sixteen month... |
2,068 | Complex intimal flaps in acute aortic dissection. | A 43-year-old man was emergently admitted and diagnosed as acute aortic dissection (Stanford type A). While being prepared for emergent operation he fell into hemodynamic hazard with repeated ventricular fibrillation and loss of consciousness. Massive aortic regurgitation and coronary disturbance due to a back-and-fort... |
2,069 | Cardiotoxicities of paclitaxel in African Americans. | To assess the cardiac disturbances in African-American patients treated with paclitaxel.</AbstractText>One-hundred-nineteen African-American patients received paclitaxel for various cancers at Howard University Hospital during the years 1993-2001. Medical records of 100 patients were available for review. Sixty-seven p... |
2,070 | Improvement in exercise performance after successful cardioversion in patients with persistent atrial fibrillation and symptoms of heart failure. | Loss of atrial systolic function as well as fast and irregular ventricular response result in the impairment of hemodynamic function in patients with atrial fibrillation (AF). AF is considered to be a less efficient cardiac rhythm than sinus rhythm (SR), and accounts for the symptoms of reduced exercise tolerance, such... |
2,071 | Frequent ICD shocks due to double sensing in patients with bi-ventricular implantable cardioverter defibrillators. | Biventricular pacing has emerged as a modality for treatment of patients with heart failure. Combined biventricular pacers and implantable cardioverter defibrillators offer treatment of heart failure as well as protection from sudden cardiac death. However, inappropriate ICD shocks as a result of double sensing due to ... |
2,072 | Rate-control versus conversion strategy in postoperative atrial fibrillation: trial design and pilot study results. | Atrial fibrillation (AF) remains a frequent complication of cardiac surgery. The optimal treatment strategy has not been established. Retrospective studies have suggested that a primary rate-control strategy may be equivalent to a strategy that restores sinus rhythm. Fifty patients with postoperative atrial fibrillatio... |
2,073 | Pharmacological approach for the prevention of atrial fibrillation after cardiovascular surgery. | Atrial fibrillation (AF) is a common complication of cardiovascular surgery. The two most important risk factors for its development are advancing age and a preoperative history of AF. Long-term sequelae, such as a stroke, are uncommon, however, atrial fibrillation frequently results in increased length and cost of hos... |
2,074 | Amiodarone prevents symptomatic atrial fibrillation and reduces the risk of cerebrovascular accidents and ventricular tachycardia after open heart surgery: results of the Atrial Fibrillation Suppression Trial (AFIST). | Atrial fibrillation (AF) is a common complication after cardiothoracic surgery (CTS). The role of amiodarone added to beta blocker as a preventive strategy in elderly patients undergoing CTS is not known. The Atrial Fibrillation Suppression Trial (AFIST) was a double blind, placebo-controlled trial that evaluated the e... |
2,075 | Rhythm versus rate control after ablation and pacing for paroxysmal atrial fibrillation: clinical implications of the PAF 2 trial. | Four recent randomized controlled studies that compared rhythm control versus rate control therapy demonstrated that rate control therapy is an acceptable alternative to rhythm control therapy. The control of heart rate achievable with pharmacologic therapy is imperfect and, in many patients, difficult to obtain. Ablat... |
2,076 | Towards a consensus in rate versus rhythm control for management of atrial fibrillation: insights from the PIAF trial. | Knowledge on the pathophysiology of atrial fibrillation is rapidly expanding and identification of focally localized triggers have led to the development of new treatment options for this arrhythmia. Conversely, the clinical decision whether to restore and maintain sinus rhythm or simply control the ventricular rate ha... |
2,077 | Clinical and haemodynamic profiles of young, middle aged, and elderly patients with mitral stenosis undergoing mitral balloon valvotomy. | To compare the clinical characteristics, haemodynamic findings, and symptomatic outcome in four age groups of patients in the UK undergoing percutaneous mitral balloon valvotomy.</AbstractText>A review of patients with mitral stenosis treated by balloon dilatation.</AbstractText>Western General Hospital, Edinburgh, a c... |
2,078 | Evolution of the atrial fibrillation substrate in experimental congestive heart failure: angiotensin-dependent and -independent pathways. | Augmented atrial apoptosis, angiotensin II expression, and related signalling pathway activation have been shown in clinical atrial fibrillation (AF), but their significance is poorly understood. This study evaluated temporal relationships between changes in atrial histopathology, selected signalling mediators, and AF ... |
2,079 | Atrial effects of the novel K(+)-channel-blocker AVE0118 in anesthetized pigs. | AVE0118 is a novel blocker of the K(+) channels K(v)1.5 and K(v)4.3 which are the molecular basis for the human cardiac ultrarapid delayed rectifier potassium current (I(Kur)) and the transient outward current (I(to)). The objective of this study was to investigate the effect of AVE0118 on atrial refractoriness (ERP), ... |
2,080 | Decreased nocturnal standard deviation of averaged NN intervals. An independent marker to identify patients at risk in the Brugada Syndrome. | Risk-stratification of asymptomatic Brugada Syndrome (BS) patients remains a key-issue. A typical spontaneous BS-ECG pattern and ventricular tachycardia (VT)/ventricular fibrillation (VF) inducibility are two recognized risk markers. The aim of the study was to identify additional risk markers in asymptomatic BS.</Abst... |
2,081 | Association between brain natriuretic peptide and extracellular water in hemodialysis patients. | Brain natriuretic peptide (BNP) is a hormone released by the left ventricle (LV) as a consequence of pressure or volume load. BNP increases in left ventricle hypertrophy (LVH), LV dysfunction, and it can also predict cardiovascular mortality in the general population as well as those undergoing hemodialysis (HD). We in... |
2,082 | Long-term treatment with glibenclamide increases susceptibility of streptozotocin-induced diabetic rat heart to reperfusion-induced ventricular tachycardia. | This study investigated the effects of long-term treatment with glibenclamide (GLIB) on the susceptibility of streptozotocin (STZ)-induced diabetic heart to ischemia/reperfusion insults. Starting 4 weeks after the injection of STZ, rats were treated with GLIB (0.1 mg/kg, ip, three times a week, STZ-GLIB group) or vehic... |
2,083 | [Indications for the implantable cardiac defibrillator]. | The indications of the implantable cardiac defibrillator (ICD) have enlarged over the time. This has been facilitated by the technological progress which permit the device to be more effective and its implantation to be more simple. So, the implantation rate has increased all over the world but especially in the United... |
2,084 | Ventricular arrhythmia induced by sodium channel blocker in patients with Brugada syndrome. | We administered pilsicainide chloride, a class Ic pure sodium channel blocker, to patients with Brugada syndrome (BS) and evaluated the occurrence of ventricular arrhythmia (VA) and T-wave alternans (TWA).</AbstractText>Ventricular arrhythmia and TWA are sometimes induced by a sodium channel blocker challenge test in B... |
2,085 | Increased exercise ejection fraction and reversed remodeling after long-term treatment with metoprolol in congestive heart failure: a randomized, stratified, double-blind, placebo-controlled trial in mild to moderate heart failure due to ischemic or idiopathic dilated cardiomyopathy. | the effects of long-term administration of beta-blockers on left ventricular (LV) function during exercise in patients with ischemic heart disease (IHD) and idiopathic dilated cardiomyopathy (DCM) are controversial.</AbstractText>patients with stable congestive heart failure (CHF) (New York heart association [NYHA] cla... |
2,086 | Mechanistic inquiry into decrease in probability of defibrillation success with increase in complexity of preshock reentrant activity. | Energy requirements for successful antiarrhythmia shocks are arrhythmia specific. However, it remains unclear why the probability of shock success decreases with increasing arrhythmia complexity. The goal of this research was to determine whether a diminished probability of shock success results from an increased numbe... |
2,087 | A randomized study of prophylactic catheter ablation in asymptomatic patients with the Wolff-Parkinson-White syndrome. | Young age and inducibility of atrioventricular reciprocating tachycardia or atrial fibrillation during invasive electrophysiological testing identify asymptomatic patients with a Wolff-Parkinson-White pattern on the electrocardiogram as being at high risk for arrhythmic events. We tested the hypothesis that prophylacti... |
2,088 | "Demand" stimulation of latissimus dorsi heart wrap: experience in humans and comparison with adynamic girdling. | Questionable systolic assistance and latissimus dorsi (LD) muscular degeneration as a result of continuous electrical stimulation constitute important drawbacks to dynamic cardiomyoplasty. To avoid full transformation of the LD and thereby cause better systolic assistance, a new stimulation protocol was developed. Fewe... |
2,089 | Terlipressin infusion in catecholamine-resistant shock. | Catecholamine-resistant shock is not uncommon in intensive care. Bolus dose terlipressin (a vasopressin analogue) has been used successfully in this setting allowing cessation of other vasopressor agents. The relative vasopressin deficiency in combination with the restoration of the vascular tone (by blocking adenosine... |
2,090 | General anesthesia for patients with automatic implantable cardioverter defibrillator in place--a case report. | Automatic implantable cardioverter defibrillator (AICD) was commercially available for use in patients with malignant ventricular tachycardia and ventricular fibrillation since its meeting with FDA approval in 1985. The number of AICD implantation has increased year by year worldwide. It was allowed to be used in clini... |
2,091 | Peroxynitrite in reperfusion arrhythmias and its whole blood chemiluminescence results. | The aims of the present study were to investigate the effects of exogenous peroxynitrite (ONOO(-)) on reperfusion arrhythmias in anaesthetized rats, and to detect endogenous and exogenous ONOO(-)-induced chemiluminescence (CL) signals in rat whole blood, which was collected during baseline and in the first minute of re... |
2,092 | Novel approaches to identifying antiarrhythmic drugs. | Currently, device therapy with implantable cardioverter-defibrillators is the only proven effective therapy for sudden cardiac death. However, new insights into the mechanisms of ventricular fibrillation, particularly the role of dynamic factors that cause wave instability, are providing conceptual advances toward deve... |
2,093 | Review of the current management of atrial fibrillation. | Atrial fibrillation (AF) is the most common sustained arrhythmia. Its prevalence is increasing and accordingly, so is its burden on healthcare systems throughout the world. The pathophysiology of AF is complex and poorly understood, which of itself presents a major challenge to the management of this important conditio... |
2,094 | A case of sick sinus syndrome that developed torsades de pointes, pacing failure and sensing failure during administration of bepridil. | A 65-year-old Japanese woman was admitted to hospital because of palpitations and faintness. She was diagnosed as having sick sinus syndrome and a permanent pacemaker was therefore implanted. Administration of bepridil (200 mg daily) was started for prevention of atrial flutter and fibrillation after PM implantation. O... |
2,095 | Medical devices: cardiovascular devices: reclassification of the arrhythmia detector and alarm. Final rule. | The Food and Drug Administration (FDA) is reclassifying arrhythmia detector and alarm devices from class III to class II (special controls). This device is used to monitor an electrocardiogram (ECG) and to produce a visible or audible signal or alarm when an atrial or ventricular arrhythmia occurs. An atrial or ventric... |
2,096 | [Cardiac bradyarrhythmia ]. | Permanent cardiac pacing was introduced in 1958 and till the end of 70s this method saved lives in particular of the patients with advanced atrioventricular block. The implantation technique has changed from complicated thoracotomy to endovasal approaches. The introduction of physiological AV sequenced atrioventricular... |
2,097 | [Treatment of ventricular arrhythmias]. | The term ventricular arrhythmia denotes various disorder in the cardiac rhythm--from isolated monomorphic ventricular extrasystoles to ventricular flutter and fibrillation. The choice of therapy of ventricular arrhythmias is primarily based on prognostic aspects. Ventricular tachycardias represent the main cause of sud... |
2,098 | [Changes in the ECG in chronic heart failure and after transplantation]. | ECG examination belongs to basic procedures in the care of patients with heart failure. The Euroheart Survey study followed the data and therapy of hospitalized patients with chronic heart failure (CHF) with participation of 116 hospitals from 25 European countries and surveyed documentation of 45,993 patients dismisse... |
2,099 | Beta-blockers are effective in congestive heart failure patients with atrial fibrillation. | It is controversial whether or not beta-blockers are effective in patients with congestive heart failure (CHF) who are complicated by persistent atrial fibrillation (AF).</AbstractText>We attempted to determine the potential differences in the efficacy between atrial fibrillation and sinus rhythm in 70 CHF patients wit... |
Subsets and Splits
No community queries yet
The top public SQL queries from the community will appear here once available.